package com.yinquan.util;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;

import javax.servlet.http.HttpServletRequest;

/**
 * 该类是根据Request获取IP和MAC
 * @author Administrator
 *
 */
public class IpRestore {
	public String getRemoteAddress(HttpServletRequest request) {  
        String ip = request.getHeader("x-forwarded-for");  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getHeader("Proxy-Client-IP");  
        }  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getHeader("WL-Proxy-Client-IP");  
        }  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getRemoteAddr();  
        }  
        return ip;  
    }  
  
	
    public String getMACAddress(String ip) {  
    	String str = "";
        String macAddress = "";
        try {
            Process p = Runtime.getRuntime().exec("nbtstat -a " + ip);
            InputStreamReader ir = new InputStreamReader(p.getInputStream());
            LineNumberReader input = new LineNumberReader(ir);
            for (int i = 1; i < 200; i++) {
                str = input.readLine();
                if (str != null) {
                    //if (str.indexOf("MAC Address") > 1) {
                    if (str.indexOf("MAC") > 1) {
                        macAddress = str.substring(
                                str.indexOf("=") + 2, str.length());
                        break;
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace(System.out);
        }
        return macAddress;
    }
}
